Filling-block for fireproof constructions.



lsectional elevation of HENRY ERICSSON, OIE*v CHICAGO, ILLINOIS.

FILLING-BLOCK FO FIREPROOF CONSTRUCTONS.

Specification of Letters Patent.

Patented Nov. 8, 1 91j).

Application sled April 27, 122s. serieu No. 429,393'.

To all whom it may conce Be it `known that I, IENRY ERICSSON, a citizenof the United States, residing at Chicago, vin the county of Cook andState of Illinois, have invented certain new and useful' Improvements inVFilling-Blocks for F ireproof Constructions, of which the following isa. description.

My invention relates to filling blocks or members formed of concrete orother suitable fire-proof mterinl adapted to serve as or the like, andto receive a suitable filling or bucking `of concrete or similarsubstance around and between them to hold the blocks in position andavoid the use of forms-as usually employed when' erecting concretefloors.

The object ofmy invention is to provide a cheap and convenient fillingblock of the kind described, in which the lower face' or base of theblocks shall'meet :lt their edges` may when erected so that the usualforms be dispensed with, and any suitable means may bei-employed tosupport the blocks in position while the concrete is being pnt inplacemid hardening.

n To this end my invention consists in .the novel construction,arrangement, and combination of parts herein shown and de- Scribed,1nd.more particularly pointed out inthe claims. A

In'V the accompanying drawings, wherein like- `or 'similar referencecharacters indicate` parts; -Flgure 1 ls a like or corresponding a floorin 'which my filling blocks ,are employed teken 'substantially on line1-1 of Fig. 2. Fio- 2 ls :in

' enlarged section teken substantially on line spaces between the bocks.

2,-2of Fig. 1. Fig. 3 is a View similar' to` that 'shown in Fi 2,showing :l` slightly modified form of lling block.

In the preferred form shown in the drewings, my improved filling blocks1 1 are formed to jointly cover the entire space between the floorgirders 3 3 or other suitble ortions of the frame ofthe building. Thease 2 of eachl block is `substantially fiat and rectangular in form andsomewhat wider `than the remaining portionsv of the blocks so that whena plurality of my blocks are assembled sideby side-as shown in Figs. 2and 3, the bases 2 will meet along their sides, while the ,upper portionand backs of the blocks are suitably separated to receive the binding orcarr lng rods 4 4- in the The sides (3A-6 of the blocks are each prelerably curved transversely of the block and the back of each block whichis also preierably-'substantislly rectangular and parallel to the faceof the base 2. The sides 6-G of the blocks are preferably formedtoreceive :i filling ot' concrete between the adjacent blocks to supportthe blocks upon the rods 4.

In the form shown a` portion substantially midway of the sides (3 .isslightly inclined in the opposite direction to lthe general inclinationof the sides so that when, the space beJv tween the blocks is -filledwith concrete about the rods 4 the same will form a. binder effectna-llyholding the blocks in position in relution to the rods'. The arrangementshown in 2 of the'drawings is such that if lines 7-'-7 are drawn fromthe center of' the hackof the blocks to the rods 4 at each of its sidesit will pass through substantially-the central portion of this'oppositely inclined portion of each side of the block, so that the lineof resistance from the rods 4-4 toI theV bucks of the block are wellwithin the walls of the blocks and through the -center of thisoppositely inclined portion.

From the description above it will be seen 4that the 'cross sectionbfthe blocks issubstantially in lthe. form of an isosceles trapezoid, thelegs of which curve ill the form of portion of an o. ee lcurve and thegroored whic is adjacent to the base.

v In the preferred .construction the margins of the base 2 arepreferably inclined slight-ly toward the back of the blocks und whenerected the lower edge of the face or base portions of the blocks meet.thereby. leaving l asmall V-sllaped recess at the bottom of each spacebetween the blocks'which is pret-` erebly filled with line concretelorother suitable material after which the filling is placed in the entirespace between theA blocks and sufficiently above and about their backs.to suitably embed the nailing strips l9-9 -for'carryi'ng the usual.floor construction. No forms of Iany kind are required as it is onlynecessary to support the blocks in a suitable manner until the concreteis filled in between and around them and properly set after whichobviously the structure is complete.

The filling blocks' my be of Suitable. 'lengt-h to extend the entiredistancebetween the beams 3-3 but' in practice it is found moreeslrfible to employ a' plurality of engagethe lower flan e of the beamand A substantially the usual-.manner common to through, and with aplurality oftransverse i and-jsuportn beams may be of the usual or anyvl.block is providedwit-hac'irc'nlar opening 11 "inforcing-material asthecase maybe, ma

Ibeing put in place. The reliforeinggmate.- rial 12 also serve s tostrengthen the base'- thev blocks and to prevent the projecting It willbe noted that the reinforeing'mate' :narrower than at the base, with theresult vIn the blocks as show!- ig. 1 so that their coinbined l n hfills .the spaceA between' the he'bearings bltween the blocks esire'form. As shown a suitable skewback-orlcpverblock 10 is provided torotec-t its lower face. rom heat in case of re and vthe extremities ofthe blocks adjacent the beams rests upon the skewback 1n tile orsimilarly' constructcdjiloors. In the preferred contruction shown, eachextending lingitudinally entirely there.

be wrapped about or otherwise engaged wit the rods to :temporarily holdthe bloclrs in position 'while the'. concrete filling 8 1s marginsthereof from' breaking away from the remainder .of tbe blocks, and whenthe4 filling 8 is inserted and has set provides an extremely efficientconnection between the rods l-Aeand the' blocks.

rial 12 projects beyond opposite sides ofthe blocks in the concaveportion of the curves, or at a point where the block is considerablythat 'the bases of adjacent blocks may be plneedin direct contact whenthe blocks are rplaced-in position.

ormfshowngin- Fig. '3 theI blocks are formed substantially as abovedescribed/1 exceptin that near "the central portion of each of-"e'blocks suitable longitudinal corpositive engagement'between theblocks and the concrete insertedin thespaces between them.

` Having. thus described my improvement it is obvious that variousimmaterlal modifications inay be made in myvdcvic'e without de i llparting;from the s irit of Inyinventipn,

iaS limiting myself to the exact form and donseribing witnesses.

to be understood hence I do notelwis struction shown.

What I claim as new, and desire to secure by Letters I atent is:

1`. In a fire 'proof construction, a filling block having a rectangularbase and a cross Section substantially in the form of an isos celestrapezoid, the legs of which curve in the form of an ogee curve, andt-he grooved portion of the'curve is adjacent to the base, andreinforcin material embedded in the base of the blocl and pro'jectingthrough the sides-of the latter at a point intermediate the ends of thegrooved portion of the curve and cxtendin to a point overlapping the thebase of said block, the reinforcing material offering no obstructionBeyond the sides of the base, whereby the ases of ad 'acent blocks 'mayabut.

2. In a re proof construct-ion, a filling .block having a rectangularbase and a cross section substantially in the form of an isosucele.S,trapezoid, the legs of which curve in the forifrofan-.ogee curve, andthe rooved portion ofthe curve is adjacentto te base, and said legshaving corrigations adjacent the upper en'd of the groovedportio'nthereof, and reinforcing material embeddedvin the base' of the block andprojecting out- Wardly' beyond the legsv thereof.

3. In a tire proof construction, a p'lnralitv i of filling blocks'eacl'ihaving `a substantially 4flat rectangular base with legs extending fromthe vmargins of the base inward and toward the back of the block, aportion of each leg-inclined in the opposite' direction, thereby forminAa groove'1 .filling material between the blo fillingv` materialat 'apoint adjacent ythe grooves in the respective legs and .above thecontiguousedges of the base of the blocks,

'a-nd;l reinforcing, material inserted in: each block and projectingthrough the grooved -portion thereof for connection-with said rod.rugations 2O are'provided .to secure a more.

lIn testimony whereof, I have hereunto signed my name inthepresence oftwo subf HENRY ERrcssoN; Witnesses j BUR'mN U. HILLS, CHARLES I. COBB.

ks, a rod embedded in the

